043
FNCA52 TJSJ 221930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST WED JUL 22 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-230800-
SOUTHEAST COASTAL PLAINS-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 10 0 10
TEMP (24H TREND) 74 (-1) 90 (+2) 73 91
RH % (24H TREND) 93 (+2) 55 (-12) 90 51
WIND 20FT/EARLY(MPH) E 13 E 14 E 12 E 18
WIND 20FT/LATE(MPH) E 12 SE 14 NE 11 E 20
MIXING HGT(FT-AGL/MSL) 5230 5090
TRANSPORT WND (MPH) E 16 E 18
VENT RATE (KT-FT) 73220 81440
DISPERSION 5 5
DSI 5 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-230800-
SOUTHERN HILLS-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 0 0 30
TEMP (24H TREND) 70 (-3) 88 (+4) 69 89
RH % (24H TREND) 98 (+3) 60 (-12) 96 57
WIND 20FT/EARLY(MPH) E 12 E 12 E 12 E 13
WIND 20FT/LATE(MPH) E 12 SE 12 E 12 E 16
MIXING HGT(FT-AGL/MSL) 6030 6120
TRANSPORT WND (MPH) E 15 E 17
VENT RATE (KT-FT) 78390 91800
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-230800-
NORTH COASTAL PLAINS-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 10 30
TEMP (24H TREND) 72 (-3) 91 (+2) 72 90
RH % (24H TREND) 98 (+2) 57 (-10) 96 60
WIND 20FT/EARLY(MPH) E 13 E 14 SE 13 E 18
WIND 20FT/LATE(MPH) SE 11 E 19 SE 10 E 20
MIXING HGT(FT-AGL/MSL) 5690 4580
TRANSPORT WND (MPH) E 16 E 20
VENT RATE (KT-FT) 79660 77860
DISPERSION 5 5
DSI 4 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-230800-
NORTHERN HILLS-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR MCLEAR CLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE TSTMS
CHANCE PRECIP (%) 0 20 0 40
TEMP (24H TREND) 70 (-3) 90 (+3) 70 89
RH % (24H TREND) 100 (+1) 59 (-11) 98 60
WIND 20FT/EARLY(MPH) SE 12 E 12 SE 11 E 16
WIND 20FT/LATE(MPH) E 6 E 16 SE 9 E 18
MIXING HGT(FT-AGL/MSL) 6850 5990
TRANSPORT WND (MPH) E 13 E 16
VENT RATE (KT-FT) 75350 83860
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-230800-
WEST COAST-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR MCLEAR CLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS NONE TSTMS
CHANCE PRECIP (%) 10 10 0 60
TEMP (24H TREND) 73 (-1) 92 (+2) 73 93
RH % (24H TREND) 99 (+2) 59 (-10) 97 57
WIND 20FT/EARLY(MPH) E 13 E 13 SE 12 E 13
WIND 20FT/LATE(MPH) E 12 E 13 E 11 E 16
MIXING HGT(FT-AGL/MSL) 5220 4590
TRANSPORT WND (MPH) SE 13 E 10
VENT RATE (KT-FT) 57420 41310
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-230800-
EASTERN INTERIOR-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 10 30
TEMP (24H TREND) 71 (-3) 90 (+4) 71 89
RH % (24H TREND) 99 (+3) 56 (-11) 97 58
WIND 20FT/EARLY(MPH) SE 13 SE 13 E 12 E 16
WIND 20FT/LATE(MPH) SE 13 SE 13 E 12 E 16
MIXING HGT(FT-AGL/MSL) 6620 5970
TRANSPORT WND (MPH) SE 15 E 18
VENT RATE (KT-FT) 86060 95520
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-230800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 20 30
TEMP (24H TREND) 69 (-3) 85 (+4) 69 85
RH % (24H TREND) 100 (+2) 64 (-11) 99 66
WIND 20FT/EARLY(MPH) SE 11 SE 11 E 10 E 13
WIND 20FT/LATE(MPH) SE 11 SE 12 E 10 E 13
MIXING HGT(FT-AGL/MSL) 4740 4130
TRANSPORT WND (MPH) SE 15 E 20
VENT RATE (KT-FT) 61620 70210
DISPERSION 5 5
DSI 6 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-230800-
CENTRAL MOUNTAIN RANGE-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR MCLEAR CLEAR PCLDY
PRECIP TYPE SHOWERS NONE NONE TSTMS
CHANCE PRECIP (%) 0 0 0 50
TEMP (24H TREND) 67 (-3) 86 (+5) 67 88
RH % (24H TREND) 100 (+2) 65 (-14) 99 62
WIND 20FT/EARLY(MPH) SE 8 SE 10 SE 6 E 11
WIND 20FT/LATE(MPH) SE 6 SE 10 E 8 E 11
MIXING HGT(FT-AGL/MSL) 7470 7110
TRANSPORT WND (MPH) SE 12 E 15
VENT RATE (KT-FT) 74700 92430
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-230800-
CAYEY MOUNTAIN RANGE-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 10 20
TEMP (24H TREND) 70 (-2) 85 (+3) 69 85
RH % (24H TREND) 100 (+1) 65 (-9) 99 64
WIND 20FT/EARLY(MPH) E 10 E 11 E 10 E 12
WIND 20FT/LATE(MPH) E 10 SE 11 E 10 E 12
MIXING HGT(FT-AGL/MSL) 5370 4670
TRANSPORT WND (MPH) E 16 E 20
VENT RATE (KT-FT) 75180 79390
DISPERSION 5 5
DSI 5 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-230800-
VIEQUES-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 20 30
TEMP (24H TREND) 77 (-2) 90 (+1) 79 90
RH % (24H TREND) 84 (-2) 55 (-5) 81 57
WIND 20FT/EARLY(MPH) E 16 SE 16 E 16 E 19
WIND 20FT/LATE(MPH) E 16 E 14 E 16 E 18
MIXING HGT(FT-AGL/MSL) 3720 3370
TRANSPORT WND (MPH) SE 16 E 20
VENT RATE (KT-FT) 52080 57290
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-230800-
CULEBRA-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 20 30
TEMP (24H TREND) 78 (-1) 90 (+2) 78 90
RH % (24H TREND) 86 (-1) 57 (-9) 84 61
WIND 20FT/EARLY(MPH) E 16 SE 16 E 16 E 18
WIND 20FT/LATE(MPH) E 16 SE 16 E 14 E 18
MIXING HGT(FT-AGL/MSL) 3610 3310
TRANSPORT WND (MPH) SE 20 E 20
VENT RATE (KT-FT) 61370 56270
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-230800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLEAR MCLEAR CLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 30 10 0 10
TEMP (24H TREND) 74 (-1) 92 (+3) 74 93
RH % (24H TREND) 94 (+3) 54 (-10) 89 52
WIND 20FT/EARLY(MPH) E 18 E 18 E 17 E 19
WIND 20FT/LATE(MPH) E 17 SE 19 E 16 E 23
MIXING HGT(FT-AGL/MSL) 5180 5190
TRANSPORT WND (MPH) E 20 E 16
VENT RATE (KT-FT) 88060 72660
DISPERSION 5 5
DSI 6 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-230800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 20 20 30
TEMP (24H TREND) 76 (-3) 88 (+2) 77 87
RH % (24H TREND) 87 (+1) 59 (-7) 85 65
WIND 20FT/EARLY(MPH) E 16 SE 16 E 16 E 19
WIND 20FT/LATE(MPH) E 17 SE 16 E 16 E 18
MIXING HGT(FT-AGL/MSL) 3530 3250
TRANSPORT WND (MPH) SE 20 E 21
VENT RATE (KT-FT) 60010 58500
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-230800-
ST CROIX-
330 PM AST WED JUL 22 2026
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 20 30
TEMP (24H TREND) 77 (-2) 89 (+2) 78 90
RH % (24H TREND) 88 (-1) 59 (-6) 86 63
WIND 20FT/EARLY(MPH) E 14 E 16 E 16 E 18
WIND 20FT/LATE(MPH) E 14 E 14 E 16 E 17
MIXING HGT(FT-AGL/MSL) 4420 4400
TRANSPORT WND (MPH) SE 18 E 24
VENT RATE (KT-FT) 70720 92400
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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